Ejecting mechanism



March 3, 1931. T. P. GARDNER 1,794,372

EJECTING MECHANISM Filed June 4. 1928 Patented Mar. 3, 1931 mini "Fr es,

THOMAS P. GARDNER, or roar ARTHUR, TEXAS, nssrcivort TO run mEXAscoMrAnY,

I or NEW roan, n. Y., A conronnrro v or DELAWARE EJEOTING MECHANISM Application filed .Tune 4, 1928. Serial No. 282,578.

This invention relates to improvements in spout making machinery and particularly to adevice for removing or ejecting finished spouts from the dies on which they are formed. The manufacture of spouts for assembly with can bodies in the making of liquid con tainers ordinarily involves the stamping of proper sized and shaped blanks from metal lo sheets and the subsequent formation of the spouts on dies or the like. The blanks are usually formed with opposed flanges on their side edges so that the flanges may be hooked together and then subjected to sufficient pressure to form a liquid tight seam. In machines adapted to form spouts in this manner, two operators are ordinarily required,one to feed the preliminarily formed blanks tothe holder dies, and another to remove the finished spouts from the dies.

My invention contemplates the provision of a device which is adapted to be used in connection with the usual spout forming machine. The object of the invention is to pro- ;vide mechanical means for removing finished spouts from the dies on which they have been formed, thus doing away with the services of one of the operators ordinarily required.

Other objects, features and advantages of 3 .the invention will appear as the description thereof, in connection with the accompanying drawing, proceeds. In the drawing, Figure 1 is a plan view of a portion of the spout forming machine with the mechanism embodying the present invention in position to cooperate therewith. Figure 2 is an enlarged end view of the spout removing mechanism taken on the line 22 of Figure 1, portions having been broken away to better illustrate details of construction.

Figure 3 is an enlarged sectional view taken on the line 3-3 of Figure 1.

Referring to the drawing, 10 represents a vertically disposed rotatable shaft uponthe upper end of which there is secured a hub or collar 11. A plurality of spaced and radially extending tapered rods or dies 12 are maintained in suitable sockets in the circumfer- 50 ential face of the collar, each die 12 being shaft 21 between the ends of arms 22 and 23 adapted to receive a roughly shaped spout blank. Shaft ,lOis rotated by power from any suitable source (not shown) and cam controlled means indicated generally at 13 are provided for. intermittently checking the roe I tation of the shaft when successive diesreach holder die 126; so as to press the hooked flanges together to form a liquid tight seam. Inas- :5

much as the spout forming mechanism forms no pa'rt of the present invention, a further description of the apparatus is unnecessary. The present invention relates to the auxiliary mechanism employed for the purpose of removing the finished spouts from the holder dies after the, forming operation has been completed. p

The spout removing mechanism or bumper, as it is commonly calledycomprises a continuously rotating shaft lfi mounted in bearings 16, andhaving at oneend a pulley 17 adapted to be rotatedby a belt 18 which a may lead to any suitable source of power. A gear wheel 19 is mounted on shaft 15 and. meshes with a second gear wheel 20 which is secured on an idler shaft 21 mounted inbearings formed near theends of a pair of spaced members 22 and 23 which constitute the arms of a bifurcated member 24. The body portion ofthe bifurcated member is formed with friction wheel 25 maybe under his control. 160

- sures to release and eject the formed member From the foregoing it will be seen that shaft 15 rotates continuously and'in turn rotates gear wheels 19 and 20 and friction wheel 25 which is mounted on the same shaft with gear wheel 20. By reason of the fact that bifurcated member 2 merely idles on shaft 15, and on account of the weight of the gear, friction wheel and shaft carried at the outer end ofthe arms,thesemembers have a tendency to move in an anti-clockwise di-""' rection as viewed inFigures 1 and 2. When the dies of the spout forming machine successively reach the position indicated by reference character 120 the formed spout28 is.

ready for removal. The operator steps on the treadle to actuate the connecting rods thereby producing a clockwise rotation of bifurcated member 2a which raises wheel 25 into frictional engagement with spout 28; The frictional resistance between the wheel and the s'poutis sufficient to loosen it on the outwardly tapering die 12c and to eject it therefrom.

Although it is considered preferable to have the movement of the bifurcated memher under the control of the operator who is feeding the roughly shaped spouts to the dies, itis obvious that cam controlled means might readily be substituted for the manually controlled means described.

A device of preferred form and construction has been illustrated and described for the purpose of showing a way in which this invention may be practiced but the inventive thought upon which this invention is based is broader than the illustrative embodiment thereof and no'limitations are intended other than those imposed by the appended claims.

What I claim is:

1. In an apparatus of the class described, a continuously rotating friction element adapted to engage a member formed on a die, means for rotating said friction element, and means for intermittently moving said friction element into engagement with the formed member under controllable pressaid member from the die upon which it has been formed. 1

3. In combination with a spout forming machine, a spout bumper comprising a rotatable driving shaft,'means for continuously rotating the shaft, a bifurcated member loosely mounted upon the shaft, an idler shaft journaled in openings in the arms of the bifurcated member, a friction element mounted on said idler shaft, a gear mounted upon each of the shafts, the gears meshing so that the friction element is rotated in response to the rotation of the driving shaft, and means for actuating the bifurcated member to move the with a formed member to dislodge said formed member from the die upon which it is formed.

In an apparatus of the class described, a rotating friction member adapted to engage a member formed on a die, means for rotating said friction member, and manually operable means for moving said friction mem- 7 her into frictional engagement with the a formed member under controllable pressures to release and eject the formed member from the die. a i

In witness whereof I have hereunto set my hand and seal this 22d day of May, 1928.

- THOMAS P. GARDNER;

friction element into ejecting engagement 

